The huge rocket NASA is developing to get astronauts to an asteroid, Mars and other distant destinations should also greatly aid robotic exploration efforts, members of Congress were told Tuesday (July 28). The Space Launch System (SLS) megarocket, ...

The huge rocket NASA is developing to get astronauts to an asteroid, Mars and other distant destinations should also greatly aid robotic exploration efforts, members of Congress were told Tuesday (July 28). The Space Launch System (SLS) megarocket, ...

The huge rocket NASA is developing to get astronauts to an asteroid, Mars and other distant destinations should also greatly aid robotic exploration efforts, members of Congress were told Tuesday (July 28). The Space Launch System (SLS) megarocket, ...